4b, Robert Burns Mews, Lambeth, London, SE24 0AT

4b is a two-bedroom semi-detached house in Lambeth, London, London (SE24 0AT). It has a recorded floor area of 65 m² (around 700 sq ft) and construction records dating it to 1996-2002. At 65 m² this is the 4th smallest of 7 units on EPC record in the building, where floor areas span 42–109 m². The building's EPC ratings span D to B, with this unit at the bottom. On EPC score it ranks last in the building (62 versus a best of 81). Other recorded features include a balcony and a basement. The latest certificate (November 2022) shows a D (score 62), on the cusp of jumping into the C band. Earlier certificates rated it C (January 2010); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Good; while wall efficiency dropped from Good to Average and roof efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 73).

Held since March 2008 — that's 18 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Sale prices here have outpaced London HPI: 31.5% per year against 0% for the wider region. Today's modelled estimate of £454,000 sits 81.6% above the 2008 sale of £249,995. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.